Brief Summary

Trixis californica occurs in desert areas of southwestern North America including southern California, south to northern Mexico and east to New Mexico and Texas. Typical habitats are arid rocky slopes, washes and desert flats at elevations generally less than 1000 meters.

Also known by the common name American threefold, this species can attain a height of 20 to 200 centimeters, and exhibits a stiff erect, much-branched growth form. The numerous leaves extend from petioles with length of 1.5 to 5.0 millimeters. The linear-lanceolate leaf blades are two to eleven centimeters long. Blades are acute at both ends, and often have a margin that is rolled under.